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Understanding the Ligand‐Directed Assembly of a Hexanuclear Th IV Molecular Cluster in Aqueous Solution
Author(s) -
Hu YungJin,
Knope Karah E.,
Skanthakumar S.,
Soderholm L.
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201300805
Subject(s) - chemistry , aqueous solution , cluster (spacecraft) , thorium , crystallography , hydrolysis , nuclear magnetic resonance spectroscopy , ligand (biochemistry) , glycine , electrochemistry , spectroscopy , inorganic chemistry , stereochemistry , organic chemistry , amino acid , uranium , electrode , biochemistry , materials science , receptor , physics , quantum mechanics , computer science , metallurgy , programming language
Abstract The electrochemical hydrolysis of thorium(IV) was monitored by a combination of high‐energy X‐ray scattering (HEXS) and NMR spectroscopy. Once formed, μ 2 ‐dihydroxo‐bridged dimers remain stable in solutions of moderate pH until glycine is added, upon which the dimers rapidly condense to form hexanuclear clusters [Th 6 (μ 3 ‐O) 4 (μ 3 ‐OH) 4 ] 12+ . In the absence of the dimers or glycine, the clusters do not form even if the solutions are stored over extended times.